LK Automation Limited LK Automation Limited
Brand: MITSUBISHI
Go Back >> Product Catalogues
A1SJ71AP21 Melsecnet interface module
MITSUBISHI A1SJ71AP21 Manual And Instructions
A1SJ71AP21 datasheetPDF datasheet
A1SJ71AP21 HardwareUser's Manual

MITSUBISHI A1SJ71AP21 Product information and technical parameters:
Brand: MITSUBISHI
Name: Melsecnet interface module
Model: A1SJ71AP21
PLC station distance: 1Km.
Cable type: QSI-200/250.
The function of the MELSECNET interface module is to connect the main CPU PLC to the MELSECNET data communication system.
As long as the switch on the component to set, you can determine the CPU PLC is as a main station or in situ station.
There are two modules available for selection: one is the connection of the optical cable network and the network of the coaxial cable.
For a ANSCPU, up to only a piece of interface components can be inserted, A2ASCPU can be inserted 2.
The popularization and application of PLC programming has been developed rapidly in our country,
It has been widely used in all kinds of mechanical equipment and production process of electrical control devices,
All walks of life have emerged a large number of application of PLC transformation of the results of the equipment.
Understand the working principle of PLC, have the ability to design, debug and maintain the PLC control system,
Has become the basic requirements of modern industry for electrical technicians and engineering students.
The instruction list programming language is a programming language similar to assembly language mnemonic,
As well as assembly language by the operation code and the number of operations.
In the case of the computer for the PLC handheld programmer compile user program.
At the same time, the programming language of the instruction list corresponds to the ladder diagram programming language,
In PLC programming software can be converted to each other. Figure 3 is the instruction sheet corresponding to the ladder diagram of figure 2PLC.
The characteristics of instruction table programming language is used to represent mnemonic operation function,
Easy to remember, easy to grasp;
In the handheld programmer on the keyboard using the mnemonic representation, easy to operate, can be programmed in computer;
There is a one-to-one correspondence between the ladder diagram and the ladder diagram. Its characteristics are basically consistent with the ladder diagram language.

Input voltage: AC100-240V.
Rated output: DC5V, 5A.
The power supply module is connected with the external power supply,
AnS programmable controller to provide the required DC5V,
They are inserted in the slot of the special power supply component on the base board,
The output of the DC5V is powered by the power supply on the substrate to the component A1SJ71AP21.
The input voltage of the component is related to the selected model A1SJ71AP21
A1S61PN/62PN has Deng generation A1S61P/A1S62P, A1S61PEU/A1S62PEU. Output type: relay.
Output points: 16 points.
Load voltage: AC120/DC24.
Load current: 2A.
Connection mode: terminal row.
Common public end points: 8.
Sequential function flow chart language is designed to satisfy the sequential logic control A1SJ71AP21.
The process of sequential process action is divided into steps and transformation conditions,
According to the transfer condition, the control system is distributed in the function flow sequence,
Step by step according to the sequence of actions.
Each step represents a control function, represented by the box.
In the box, the ladder logic is used to complete the task of the corresponding control function A1SJ71AP21.
This programming language makes the program structure clear and easy to read and maintain,
Greatly reduce the programming workload, shorten the programming and debugging time.
Used in the system of the size of the school, procedures for more complex occasions.
Sequence function flow chart programming language features: to function as the main line, in accordance with the functional flow of the order of distribution, clear, easy to understand the user program,
Avoid the defect of ladder diagram or other languages,
At the same time, the use of ladder language to avoid the use of ladder programming,
Due to the complicated mechanical interlock, the structure of the user program is complex and difficult to understand,
User program scan time is also greatly reduced. Program memory capacity 14K.
Input and output points to the maximum 512 points.
A scan cycle of PLC must pass through three stages: input sampling, program execution and output refresh A1SJ71AP21.
PLC in the input sampling phase: first of all, in order to scan the sequence of all existing input latches in the input terminal of the state or input data read,
And write it into the corresponding input status register,
Refresh the input, then close the input port, enter the program execution stage A1SJ71AP21.


...More relevant models >>>>